On most machines the wire feed control also adjusts the amperage. Faster = hotter. Slower = cooler. Some machines have range settings. LOW MED HIGH you still have to adjust the wire feed in each range for your needs.
From the nameplate on the welder you find the amperage that the welder draws at the three phase voltage that you are going to use. This amperage is used to size the phase converter. This amperage is also used to size the breaker that will feed the phase converter and wire size for the installation.
The recommended welder amperage for welding stainless steel is typically between 50 to 90 amps, depending on the thickness of the stainless steel being welded. It is important to consult the welding machine's manual and adjust the amperage accordingly for best results.
The 225 amps is the secondary output amperage. Look on the machines nameplate to find the input amperage. It is that amperage that is needed to size the feed wire and there the breaker size. When you find that amperage you may want to re question the breaker size.
The GMA series of fuse is a fast acting glass tube fuse. The dimensions are 5 X 20 mm. This series of fuse's amperage span is from 63 mA right up to 8 amps. I would suggest that your fuse is rated at 250 mA or (1/4 of an amp) with a 250 volt rating.
Absolutely, you will have voltage drop, maybe enough voltage drop that the welder will not work <<>> To do a voltage drop calculation for the 200 foot cable the input amperage of the welder needs to be stated. At a maximum distance of 201 feet and limiting the voltage drop to 3% or less, a #6 copper conductor can deliver 37 amps on a 220 volt system. Check the nameplate on the welder to see if it falls withing the range of 37 amps input amperage. Do not use the welders output amperage.
No, it is not safe to plug a 120v 20 amp welder into a 240v 40 amp outlet. The voltage difference is too high and could damage the welder. It is important to match the voltage and amperage of the welder with the corresponding outlet.
Always check the nameplate on the device. It will have the serial no., how many hertz it operates at, the voltage, and amperage. Their are different types, so the amperage will differ as well.
Need to know the amperage rating of the plug or the NEMA configuration of the plug and receptacle
You might find where it was made and contact the state museum to see if they want it for display purposes.
gma
The wire size depends on the amperage, not the voltage. The fact that the welder runs on 440 volts does not affect the wire size! You need to ask this question instead: What size wire do you need for a three phase welder on an eight foot run if the nameplate amps are 45A?
If the welder is set to the high range of 150 to 350 amps and the fine adjustment knob is positioned at 5 on a 10-point scale, you can estimate the amperage as approximately halfway between the two extremes. This would suggest an amperage around 250 amps, as 5 on the scale indicates a mid-range setting within the high range.